Jon Fosse, a Norwegian playwright and author, was awarded the Nobel Prize in literature on Thursday, with the Swedish Academy citing his “innovative plays and prose which give voice to the unsayable.”

Since his debut novel “Red, Black” was published in 1983, Fosse has written poems, essays, children’s books, plays and novels. His longest work to date is the critically acclaimed “Septology,” a sequence of novels spanning 1,250 pages of prose that follow the journey of an aging artist grappling with the divine and the passage of time.

“While he is today one of the most widely performed playwrights in the world, he has also become increasingly recognised for his prose,” the Swedish Academy said after the award was announced.